{"id":"CVE-2017-12867","aliases":["GHSA-597c-mh7m-48v7"],"url":"https://o3.security/vulnerability/CVE-2017-12867","summary":"SimpleSAMLphp Invalid token creation and validation","details":"The SimpleSAML_Auth_TimeLimitedToken class in SimpleSAMLphp 1.14.14 and earlier allows attackers with access to a secret token to extend its validity period by manipulating the prepended time offset.","published":"2017-08-29T15:29:00.877Z","modified":"2026-10-24T10:30:38.445330423Z","cvss":{"score":5.9,"severity":"MEDIUM","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N"},"epss":{"score":0.0125,"percentile":0.66558,"asOf":"2026-08-08"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"simplesamlphp/simplesamlphp","fixedVersion":"1.14.15"}],"fix":{"url":"https://github.com/simplesamlphp/simplesamlphp/commit/608f24c2d5afd70c2af050785d2b12f878b33c68","label":"simplesamlphp/simplesamlphp@608f24c"},"references":[{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2017/12/msg00007.html"},{"type":"ADVISORY","url":"https://www.debian.org/security/2018/dsa-4127"},{"type":"FIX","url":"https://simplesamlphp.org/security/201708-01"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2017-12867"},{"type":"WEB","url":"https://github.com/simplesamlphp/simplesamlphp/commit/608f24c2d5afd70c2af050785d2b12f878b33c68"},{"type":"WEB","url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/simplesamlphp/simplesamlphp/CVE-2017-12867.yaml"},{"type":"PACKAGE","url":"https://github.com/simplesamlphp/simplesamlphp"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-24T10:30:38.445330423Z"}}